Did you change plug brands/temps?Is your fuel fresh and verified to run well in another car?Have you checked your head bolts, conrod, and front bearing AND FUEL TANK?Sounds like your lean on bottom or you have an air leak.Reseal the motor and carb.Take out one head shim.Install a new P3 plug and you should be good.Having compression when the engine is cold doesn't mean a whole lot.Check it when it's warmed up.Unless you have ran it very hot or seriously neglected your air filter you should have at least a couple more gallons left to go...Pulling one or two head shims will sometimes give tired engines new life because it increases compression.Hope It works out for ya. Good luck.